Motorcycle mouth guard



FIG. 1 is a front perspective view of a motorcycle mouth guard showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a rear view thereof.

The strap is shown broken away in FIGS. 3, 5 and 6 for ease of illustration. 

I claim the ornamental design for a motorcycle mouth guard, as shown and described. 